LT1374CR-5#PBF Analog Devices Integrated Circuit (Other) In Stock
The LT1374CR-5#PBF is a current-mode fixed 5 V output buck (step-down) switching regulator capable of delivering 4.5 A output current from a 5 V to 25 V input range, with internal 500 kHz switching frequency for compact filter design. It is packaged in a 7-pin TO-263 surface-mount package and is lead-free for RoHS compliance. Available globally with stock for immediate shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- LT1374CR-5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.8950(MOQ 1)
- Temp Range
- ?°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT1374CR-5#PBF?
- Fixed 5 V output with 4.5 A maximum output current
- 5 V to 25 V wide input voltage range for versatile power system compatibility
- Current-mode PWM control with internal 500 kHz switching frequency
- TO-263-7 surface-mount package with exposed tab for enhanced thermal dissipation
- Lead-free (#PBF) RoHS-compliant construction
- Cycle-by-cycle current limiting for automatic overcurrent protection
What is LT1374CR-5#PBF used for?
The LT1374CR-5#PBF is used in point-of-load DC-DC converters for industrial equipment, embedded computing boards, and telecom shelf units where a regulated 5 V rail at up to 4.5 A must be generated from a higher-voltage bus of 8 V to 24 V. Its 500 kHz switching frequency allows small external inductors and capacitors, reducing the total solution size for board-mounted power supplies in servers, networking hardware, and factory automation controllers.
What are the specifications of LT1374CR-5#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1462 |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 5V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PSSO-G7 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 8.5A |
| Output Voltage-Max | 5.1V |
| Output Voltage-Min | 4.9V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP7H,.55,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 2.5mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 560kHz |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LT1374CR-5#PBF datasheet?
LT1374CR-5#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1374CR-5#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and output current does LT1374CR-5#PBF support in a point-of-load application?
The LT1374CR-5#PBF accepts an input voltage of 5 V to 25 V and delivers a fixed 5 V output at up to 4.5 A. This makes it suitable for 12 V or 24 V industrial bus systems stepping down to a 5 V logic rail, handling loads from low-power sensors up to multi-core processor boards drawing near 4.5 A continuously.
How does the 500 kHz switching frequency of LT1374CR-5#PBF affect passive component sizing?
At 500 kHz, the inductor value required for a 5 V output at 4.5 A is typically in the range of 10 µH to 22 µH, and output capacitors can be reduced to 100 µF or less while maintaining acceptable ripple. This allows a compact PCB solution compared to 100 kHz regulators, which need 4 to 5 times larger inductors for the same ripple performance.
What thermal advantage does the TO-263-7 package provide for LT1374CR-5#PBF in high-current designs?
The TO-263-7 package includes an exposed metal tab that solders directly to the PCB copper pour, providing a low junction-to-board thermal path. At 4.5 A output current, this allows operation without an external heatsink in designs where adequate PCB copper area is provided, keeping junction temperature below 125°C at typical ambient temperatures up to 70°C.
Is LT1374CR-5#PBF suitable for replacing an older through-hole 5 V regulator in a board redesign?
Yes. The LT1374CR-5#PBF in TO-263-7 is the surface-mount equivalent of the TO-220-packaged version, supporting the same 5 V and 4.5 A ratings in a lower-profile SMT footprint. The #PBF suffix also confirms lead-free construction, meeting RoHS requirements that older through-hole regulators may not have complied with, simplifying transition to a compliant board redesign.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $10.5000 | $10.50 |
| 2+ | $7.8600 | $15.72 |
| 4+ | $5.8950 | $23.58 |
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